package homework;

public class thread {

    public static void main(String[] args) {
    
    }
}

class  a1 implements  Runnable{

    @Override
    public void run() {
        System.out.println(1);
    }
}
class  a2 implements  Runnable{

    @Override
    public void run() {
        System.out.println(2);
    }
}
